X-rays with frequency 3 ⨉ 10 18 Hz shine on a crystal, producing an interference pattern. If the first bright spot is observed at an angle of 75.5°, what is the lattice spacing of this crystal?

Explanation:

n = Order = 1

c = Speed of light =

f = Frequency =

= Angle =

Lattice spacing is given by

The lattice spacing of the crystal is

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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